Angled Dental Implant Interface for Screw Protrusion Prevention
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Solution Overview
Problem
In dental implantology, existing interfaces are straight and can cause screws to protrude through the aesthetic area of prosthetics due to misalignment or anatomical complications, leading to unwanted situations in patients.
Innovation Solution
A dental interface with a sloping design featuring a first shaft and a second shaft forming an angle between 90° and 180°, along with a truncated cone sector internal orifice, allowing for screw fixation without protrusion through the aesthetic area, utilizing a screw housing and wrench-compatible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a straight interface is used to connect the implant and prosthetic, then the structure is simple and easy to manufacture, but the screw may protrude through the aesthetic area when the implant is positioned in a sloping position
Solution Approach 1:
The interface transitions from a straight one-dimensional configuration to a sloping three-dimensional configuration with angular deviation. The first shaft aligns with the implant axis while the second shaft slopes at an angle between 90°-180°, creating a spatial transformation that redirects the screw path away from the aesthetic area while maintaining structural integrity and functional connection between implant and prosthetic.
2Adaptability or versatility
If the implant is positioned in a sloping position to adapt to anatomical conditions, then adaptability to bone morphology is improved, but the screw alignment with the aesthetic area becomes problematic
Solution Approach 1:
The interface employs asymmetric geometry where the first shaft and second shaft form an angular relationship between 90°-180°, rather than a symmetric straight alignment. This asymmetric configuration allows the interface to adapt to sloping implant positions while the angular deviation redirects the screw path away from the aesthetic area, resolving the conflict between anatomical adaptability and aesthetic outcome.
3Object-affected harmful factors
If a sloping interface design is implemented to prevent screw protrusion, then aesthetic outcome is improved, but the interface complexity increases
Solution Approach 1:
The interface is segmented into distinct functional components: a first shaft for implant connection, a second shaft for prosthetic connection at an angle, and a screw housing positioned within the angular structure. This segmentation allows each component to perform its specific function while the overall angular configuration prevents screw protrusion through the aesthetic area, balancing complexity with functional effectiveness.
Data Source
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AI summary
The dental interface to be placed on at least one implant which is the object of this invention comprises an area of contact with the implant which comprises a first shaft which coincides with the shaft of the implant, and a sloping area comprising a second area and a sloping face. In the interface, the first shaft and the second shaft intersect and form between them an angle at the intersection; the aforementioned angle of the intersection between the first shaft (5) and the second shaft (7) is comprised in a range between 90° and 180°.